Specific Heat Capacity Converter

Convert non-negative specific heat capacity between J/(kg·K), kJ/(kg·K), J/(g·K), cal/(g·°C), kcal/(kg·°C), and BTU-based units.

Heat properties

Convert specific heat capacity across SI, calorie-based, and BTU-based units

Translate material-property data without mixing heat capacity units across engineering notes, food science, lab references, and legacy imperial tables.

Quick presets

Scope note

This page converts specific heat capacity only. It does not calculate total heat stored without a mass value, and it does not replace temperature-dependent property tables for exact design work.

Enter values Provide a non-negative specific heat capacity value to calculate the full conversion sheet.

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Heat Properties

Specific heat capacity converter: J/(kg·K), cal/(g·°C), and BTU-based units explained

A specific heat capacity converter rewrites the same material property in the unit your lab note, textbook, process sheet, or engineering table expects. That matters because the property may be listed in SI units, calorie-based units, or BTU-based units even when it describes the same amount of heat needed to raise a unit mass by one degree.

What specific heat capacity measures

Specific heat capacity tells you how much heat energy is required to raise the temperature of a unit mass of material by one degree. It is a property reported per unit mass, so it is not the same thing as total heat capacity for a whole object.

The same value can be written in J/(kg·K), kJ/(kg·K), J/(g·K), cal/(g·°C), kcal/(kg·°C), or BTU-based units without changing the underlying material property.

q = m c ΔT

Heat added depends on mass, specific heat capacity, and temperature change.

1 J/(g·K) = 1,000 J/(kg·K)

Links the gram-based and kilogram-based SI forms used in technical sources.

1 cal/(g·°C) = 4,184 J/(kg·K)

Shows the calorie-to-SI relationship used by the converter.

Why unit systems vary in real references

Laboratory chemistry and food science references often use calorie-based units, while engineering and physics tables usually prefer SI units. Older US material references may express the same property in BTU per pound and degree Fahrenheit.

A converter helps when you need to compare those sources directly, but it does not remove the need to check the underlying measurement conditions. Published values can still vary with temperature, phase, composition, and the exact test basis.

How to use the result responsibly

Use the converted value as a unit translation for the same property, not as a substitute for a full thermal model. To estimate total heat added or removed, you still need the actual mass and the relevant temperature change.

If the source value depends strongly on temperature or composition, keep the original context attached to the number. The converter preserves the property magnitude, but it cannot correct for data taken under different conditions.

Further reading

Frequently asked questions

Is specific heat capacity the same as heat capacity?

No. Heat capacity applies to a whole object or sample. Specific heat capacity divides that property by mass so the result can be compared across materials.

 Why are calorie-based units still used?

They remain common in chemistry, food science, and older educational references, so conversion is useful when you need to compare with SI or engineering sources.

 Can I use this page to calculate total heat added?

Not by itself. You still need the material mass and the temperature change, because total heat depends on q = m c ΔT.

 Why can the same material have different published values?

Specific heat capacity can vary with temperature, phase, moisture content, composition, and the exact measurement method used.

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